Improvement in attachments for injectors



D. LEES.

Attachment for Injectors.

Patented Feb. 9,1675.

him-159,587.

IN" OR WITNESSES:

s N B o T T A EiE G RAPHIG COJHOTO LITH. $5 $44 NBDFPLACE, NPR

UNITED STATES PATENT Genoa;

DAVID LEES, OF BIRMINGHAM, ASSIGNOR TO HIMSELF AND S. G. STEWART, OF TYRONE FORGES, PENNSYLVANIA.

IMPROVEMENT IN ATTACHMENTS FOR INJECTORS.

Specification forming part of Letters Patent No. 1 59,587, dated February 9, 1875; application filed October 10, 1874.

T 0 all whom it may concern:

Be it known that I, DAVID LEES, of Birmingham, in the county of Huntingdon and State of Pennsylvania, have invented an Improved Attachment for Injectors for Steam- Boilers, of which the following is a specification:

The invention will first be fully described, and then pointed out in the claim. V

In the sectional elevation of drawing is shown the well-known ejector, having nozzle A and overflow B, together with the checkvalve G, (in the pipe that leads to boiler.) Between this valve and nozzle A, I have introduced a lateral tube, D, in which is placed a valve, E, held inwardly and away from its seat by a spring,F, until the pressure of steam injectors, the inwardly-opening spring-pressed valve E, in combination with the outwardlyopening valve G, as and for the purpose specified.

DAVID LEES.

Witnesses:

JOHN OwENs, A. P. KINNEY. 

